The Goiânia accident [ɡoˈjɐ̃njə] was a radioactive contamination accident that occurred on September 13, 1987, in Goiânia, Goiás of Brazil, after an unsecured radiotherapy source was found at an abandoned hospital site in the city. It was subsequently handled by many people, resulting in four deaths. About 112,000 people were examined for...
